Car Parts Guide
EXHAUST SYSTEM Kia Rio · PARTS GUIDE

Kia Rio Exhaust System: Specs, Fitment & Common Faults

On the Rio, if diesel and told a blocked DPF is "your driving style," it's genuinely worth knowing the DPF is ECU-managed, not owner-serviceable.

Illustration of a car exhaust system Illustration for editorial purposes
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OEM Part Number: confirm via VIN — Rear silencer (aftermarket) Bosal 169-041 / Walker 22970

Accuracy note: Covers the Kia Rio (2017-) as listed in the UK aftermarket catalogues. Exhaust part numbers depend on engine, fuel, emissions standard (Euro 5 / Euro 6) and body — the catalogue listings below are aftermarket references for this generation and are not engine-filtered, so confirm the fit by your VIN or engine code before ordering. Walker 'code letter' values (52, 62, 91 etc.) must match the system fitted. Genuine numbers are only shown where a listing quotes one.
Rear silencer (back box) — aftermarketBosal 169-041, 165-055, 169-217 (need accessories); Walker 22970 (730 mm, code letter 52); MTS 01.61035 (700 mm, 6.5 kg), 01.61273 (880 mm), 01.60576 (730 mm), trim codes listed; Vegaz KS-190, KS-162, KS-148 (0.97 m), KS-149 (0.86 m), KS-132, KS-112 (780 mm); Polmo 47.06, 47.60, 47.71, 10.41; Izawit 36.036, 36.011
Centre / intermediate silencer — aftermarketVegaz only: KS-156IMA, KS-126 (900 mm), KS-137IMA (1000 mm).
Front pipe / catalytic converter (DPF on diesels) — aftermarketBosal 090-244 (Euro 5); Walker 28914 (360 mm, with fitting parts); Vegaz HUK-952QP, KK-959, KK-960, KK-945 (Euro 6), HUK-954; BM Catalysts BM92723H, BM92897H, BM92478H (Euro 6); JMJ 1091753 (Euro 6); AS 61083, 25146; NAP CAK11599 (Euro 6, 405 mm)
Genuine (OE) numbers quotedNone quoted in catalogue listings — order genuine parts against your VIN
Fitment notesMTS 01.61035 is the only item with Rio-specific equipment codes. Engines not mapped to parts.

A Genuinely Honest, Real Argument Worth Knowing If Told It's "Your Driving Style" — Kia Rio Exhaust System

This is genuinely worth knowing if a dealer blames a blocked DPF on your driving style: the DPF itself is not a component you're expected to service — it's a fixed part of the exhaust system, self-managed by the car's ECU. Genuine contamination is typically the result of a fault with an associated component, such as the differential pressure sensor or EGR valve, rather than simply how the car is driven.

A genuinely useful, real technical detail worth knowing about an active regeneration: exhaust temperature typically climbs to around 600-700°C during a regen, the EGR closes to zero, and the process takes roughly 10-15 miles. It's genuinely critical not to switch the engine off while this is happening, since interrupting a regeneration partway through is a well-documented cause of soot blockage.

It's also genuinely worth verifying directly what emissions equipment your specific car actually has, rather than trusting a blanket claim from a dealer — one documented case saw a dealer incorrectly tell a buyer a specific diesel variant had no DPF at all, when it genuinely did.

Kia Rio Exhaust System: The Part That Announces Its Own Problems

On the Kia Rio, most faults are things you'd spot visually first, but this one usually announces itself acoustically — a rattle, a drone, a noticeable jump in noise levels. That's actually helpful, since it means you'll likely notice trouble well before it gets serious.

Kia Rio Exhaust System: Watch: Replacing It

🎬 Watch: Kia Rio / Hyundai Accent 2012-2017 Exhaust Flex Pipe Replacement (sister)

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Previous-gen Rio (UB), not 2017-

Kia Rio Exhaust System reference plate
Before you buy: exhaust configuration differs significantly by engine size, fuel type and whether your car has a particulate filter. Always confirm against your VIN before ordering.

Kia Rio Exhaust System: What It Does

Three jobs happen inside the Kia Rio's exhaust system: routing burnt gases away from the engine, quieting them through the silencer, and treating emissions via a catalytic converter and particulate filter. Petrol and diesel variants often need completely different systems to meet their respective emissions requirements.

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Kia Rio Exhaust System: Warning Signs, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Exhaust System Guide for warning signs and fault codes to watch for, confirming fitment against your VIN, and which aftermarket brands are worth trusting.

More Kia Exhaust System

The same part, covered across other Kia models.